I just wanted to thank you for adding a port for Ubuntu. The install couldn't have been simpler using the software manager. I also got the same error, and will wait for the upgrade.

The Ubuntu package was created and is maintained by the Ubuntu people. It is not supported by Kovid or myself. Also, do be a where that Ubuntu packages are typically not updated for the duration of the release. Meaning 0.6.20 will probably never come to Ubuntu 9.10.